Cylinder Head Porting and Power Production

yellow rose said

Let’s throw W5’s in there, because that head should have been fixed and then continued.

Click to expand...

I would have thrown in the W5’s since I have a pair of them, 1 well ported and the other pair as cast in there boxes.
It’s just not a head everyone is running to and there not exactly out there to be had. All the other heads I listed are available AFAIK.